Balloon inflation device



FIG. 1 is a perspective view of the balloon inflation device of this invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left-side elevational view thereof;

FIG. 4 is a right-side elevational view thereof;

FIG. 5 is a top plan elevational view thereof; and,

FIG. 6 is a rear elevational view thereof, the bottom view not forming part of the claimed design and thus not shown. 

CLAIM The ornamental design for a balloon inflation device, as shown and described. 